Download or read book Maintenance of Reflective Signs written by Wayne D. Kenyon and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined deterioration of reflective sign sheeting in New York State, and assessed the effectiveness of sign washing and clear-coating for restoring or preserving reflectivity of enclosed-lens engineer-grade sheeting.

Download or read book Maintenance Management of Street and Highway Signs written by Richard A. Cunard and published by Transportation Research Board. This book was released on 1990 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to traffic engineers, maintenance managers, sign shop supervisors, and others interested in the maintenance of street and highway signs. Detailed information is presented on the current practices of state and local governments in managing the maintenance of street and highway signs within their jurisdictions. The maintenance of street and highway signs is viewed as a means for improving the effectiveness of a signing system. This report of the Transportation Research Board describes the maintenance practices of several state and local highway agencies along with the rationale for those practices. It covers inspection, refurbishing, and replacement practices, along with information on equipment and personnel requirements.

Download or read book Maintenance of Signs and Sign Supports for Local Roads and Streets written by and published by . This book was released on 2000 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maintenance of Small Traffic Signs written by and published by . This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Project Work Plan for Lidar for Maintenance of Pavement Reflective Markings and Retro reflective Signs written by Michael J. Olsen and published by . This book was released on 2016 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implementation Strategies for Sign Retroreflectivity Standards written by Kent L. Black and published by Transportation Research Board. This book was released on 1992 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Value Engineering Study of Sign Maintenance written by United States. Federal Highway Administration. Implementation Division and published by . This book was released on 1978 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combined state studies: Arkansas State Highway and Transportation Dept., Florida Dept. of Transportation, Kentucky Dept. of Transportation, and Federal Highway Administration.

Download or read book Lidar for Maintenance of Pavement Reflective Markings and Retroreflective Signs written by Michael James Olsen and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lidar for Maintenance of Pavement Reflective Markings and Retroreflective Signs written by Michael James Olsen and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Outdoor Testing of Reflective Sign Materials written by Thomas J. Nettleton and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Determination of the Appropriateness of Virginia s Retroreflective Sign Sheeting Specification for Fluorescent Orange Construction and Maintenance Signs written by Stephen C. Brich and published by . This book was released on 2002 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: To ensure the safe and efficient movement of traffic through a highway network during nighttime conditions, traffic signs are either illuminated or made retroreflective. The Virginia Department of Transportation (VDOT) requires that retroreflective sheeting used on construction and maintenance activity signs be a fluorescent prismatic lens type capable of being retroreflective at entrance angles as great as 50 deg with observation angles of 0.2 and 0.5 deg. Because the validity of the 50-deg entrance angle requirement was questioned, this research was conducted to determine if VDOT's specification is appropriate. Since this project was concerned with fluorescent orange construction and maintenance signs, 232 work zones in Virginia for the 1999 construction season were identified and inventoried. From these sites, 1,865 signs were investigated. The information collected included position, offset, height, shape and dimensions, whether tilted forward or back, rotation and twist, and the number of approach lanes facing the sign. This information was compiled in a spreadsheet, and a vector-based model was developed to determine the entrance, observation, rotation, and orientation angles for each sign. The results indicated that VDOT's 50-deg entrance angle requirement is not appropriate for fluorescent orange construction and maintenance signs. However, the results also indicated that more emphasis should be placed on observation angle requirements than on entrance angle requirements. Every motorist on the approach to a sign will have an observation angle of 0.2, 0.5, 1.0, 1.5, and possibly 2.0 deg depending on the type of vehicle being driven. The study recommends that VDOT specify a 40-deg entrance angle and a 1.0-deg observation angle for prismatic fluorescent orange work zone signs. In addition, the study recommends that the specification include requirements for orientation and rotation angles.

Download or read book Service Life of Retroreflective Traffic Signs written by Kent L. Black and published by . This book was released on 1991 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to predict coefficient of retroreflection (RA) values for inservice traffic signs is critical for the Federal Highway Administration's (FHWA) Sign Management System (SMS). Within the SMS, tools for predicting inservice retroreflective performance of traffic signs and for determining the motorist's visual needs are required. The research which focuses on the motorist's needs in terms of traffic sign luminance, legibility distance, conspicuity, etc., is on-going by others. The project reported on here evaluated the effects of climatological and geographic variables on sign sheeting deterioration. A national data collection effort was undertaken. Data samples from 6,275 traffic signs were collected across the country.

Download or read book Sign guidelines written by United States. Bureau of Reclamation and published by . This book was released on 2006 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Establishing Priorities for Operation and Maintenance of Overhead Guide Signs written by California. Department of Transportation. Overhead Guide Sign Review Team and published by . This book was released on 1981 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AASHTO Maintenance Manual for Roadways and Bridges written by Kenneth A. Brewer and published by AASHTO. This book was released on 2007 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Unit Costs and Productivity Standards for Various Highway and Bridge Maintenance Activities written by United States. Federal Highway Administration and published by . This book was released on 1977 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Policy on Maintenance of Safety and Traffic Control Devices and Related Traffic Services written by American Association of State Highway Officials and published by . This book was released on 1955 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: